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Ya... I just got the gsii this morning and I'm very happy with it. Just curious as to do I need to charge the battery for 8h for 3 days or not. Thanks
Sent from my GT-I9100 using XDA App
No just full charge and use it .
jje
Woo hoooo
Sent from my GT-I9100 using XDA App
Charge the battery, run it down to zero, charge to full, repeat for the first dozen ours so times, battery life has been improving in each cycle and I also recommend you do the same
Sent from my GT-I9100 using XDA Premium App
But isn't flattening Lithium Ion batteries bad for them? If you search the internet it often says not to over discharge as well as under charging them also increasing their life span. The older NiMh and NiCd batteries benefited from full discharge and recharge.
Charge the battery, run it down to zero, charge to full, repeat for the first dozen ours so times, battery life has been improving in each cycle and I also recommend you do the same
Click to expand...
Click to collapse
If there's one way to send your battery to an early grave, this is it.
Modern batteries are limited by their number of discharge/recharge cycles. Letting the battery drop to 80% and then recharging is the same as letting it drop to 20%.
However, allowing the capacity to drop to zero is a stupid thing to do, since this permanently damages the battery. The battery has its own controller which goes some way towards protecting it, but it's a trade-off between shortening the lifetime and the actually runtime you can get from the battery.
So, to summarise: you're fine letting the battery drop to 10-20% before recharging. Do not allow it to fall below this too often, as you'll shorten the lifespan.
pbrown77 said:
But isn't flattening Lithium Ion batteries bad for them? If you search the internet it often says not to over discharge as well as under charging them also increasing their life span. The older NiMh and NiCd batteries benefited from full discharge and recharge.
Click to expand...
Click to collapse
Yes it is 'bad' for Li-on batteries to be run down to zero. Ignore any posts you see saying otherwise.
Just charge it and use it. When possible, top up charge. Li-on batteries do not have memories and do not need to be 'conditioned'.
David Horn said:
If there's one way to send your battery to an early grave, this is it.
Modern batteries are limited by their number of discharge/recharge cycles. Letting the battery drop to 80% and then recharging is the same as letting it drop to 20%.
However, allowing the capacity to drop to zero is a stupid thing to do, since this permanently damages the battery. The battery has its own controller which goes some way towards protecting it, but it's a trade-off between shortening the lifetime and the actually runtime you can get from the battery.
So, to summarise: you're fine letting the battery drop to 10-20% before recharging. Do not allow it to fall below this too often, as you'll shorten the lifespan.
Click to expand...
Click to collapse
nobnut said:
Yes it is 'bad' for Li-on batteries to be run down to zero. Ignore any posts you see saying otherwise.
Just charge it and use it. When possible, top up charge. Li-on batteries do not have memories and do not need to be 'conditioned'.
Click to expand...
Click to collapse
Hmm, my bad, my Apologies, seems there's some way to go yet for me, I assumed this was the case as I had horrid life out straight out of the box, these discharge cycles helped tremendously, though with that being said I tend to not leave it below 15% now before I charge.
Oh well, live and learn.
Never discharge the battery to less then 10-15% if possible.
Aww crap I discharged it to zero last night. I thought out make sense cause back when I used the nexus one, there was this method of conditioning battery by discharging the battery. Ah well thanks guys
Sent from my GT-I9100 using XDA App
Nurra said:
Aww crap I discharged it to zero last night. I thought out make sense cause back when I used the nexus one, there was this method of conditioning battery by discharging the battery. Ah well thanks guys
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
Won't hurt that much. Contrary to what people say li-ion has limit on amount of recharge applied from whatever level it was applied. Also the phone cuts off before dangerous low levels are reached. However frequently doing this should be avoided.
The biggest danger is leaving phone in discharged state for long period of time as the background discharge (e.g. Power on off button, clock, etc.) will flatten the battery, without the protection circuits and completely ruin it; charging while hot (above 50 to 60 c) will also send battery to an early grave.
Sent from my GT-I9100 using Tapatalk
Are we going to need to charge this phone for 8-10 prior to first use?
Sent from my Epic 4G
They always say to do that, but I have never been able to keep hands off a new phone that long.
pdappcgeek said:
Are we going to need to charge this phone for 8-10 prior to first use?
Sent from my Epic 4G
Click to expand...
Click to collapse
Usually they come about half charged so you'll be good for a few hours. The 8-10 hour rule was for older battery technology (nickel cadmium), the new kind (lithium polymer I think?) is much more flexible as far as charging schedules. I don't think you have to do anything special for the initial charge.
pdappcgeek said:
Are we going to need to charge this phone for 8-10 prior to first use?
Sent from my Epic 4G
Click to expand...
Click to collapse
The better question is can you wait that long?
Sent from my PG86100 using Tapatalk 2
Honestly, when you get your phone (and once a month) you should let your battery drain completely (within 2% is a decent rule) and then charge all the way. Do this for 2-3 cycles and you battery will last a lot longer. This is true for any electronics.
Skullmonkey said:
Honestly, when you get your phone (and once a month) you should let your battery drain completely (within 2% is a decent rule) and then charge all the way. Do this for 2-3 cycles and you battery will last a lot longer. This is true for any electronics.
Click to expand...
Click to collapse
not quite - the below is from Battery University in regards to lithium ion batteries (which is what's in the evo);
If at all possible, avoid frequent full discharges and charge more often between uses. If full discharges cannot be avoided, try utilizing a larger battery. Partial discharge on Li-ion is fine; there is no memory and the battery does not need periodic full discharge cycles other than to calibrate the fuel gauge on a smart battery.
Click to expand...
Click to collapse
And
Lithium-ion is a very clean system and does not need formatting when new, nor does it require the level of maintenance that nickel-based batteries do. The first charge is no different than the fifth or the 50th. Formatting makes little difference because the maximum capacity is available right from the beginning. Nor does a full discharge improve the capacity once faded. In most cases, a low capacity signals the end of life. A discharge/charge may be beneficial for calibrating a “smart” battery, but this service only addresses the digital part of the pack and does nothing to improve the electrochemical battery. Instructions to charge a new battery for eight hours are seen as “old school” from the nickel battery days.
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Click to collapse
alainater said:
The better question is can you wait that long?
Sent from my PG86100 using Tapatalk 2
Click to expand...
Click to collapse
LOL..... I ask because I don't want to have to feel guilty about not waiting!
Sent from my Epic 4G
Ummm.... Yes? Maybe? HELL TO THE NO!
Lithium Polymer batteries are not the same as Lithium Ion batteries.
Avoid draining them to the point the phone shuts off. If they get too low they die.
Never run them down on purpose.
I run RC trucks, I have been using LiPo batteries for several years.
Skullmonkey said:
Honestly, when you get your phone (and once a month) you should let your battery drain completely (within 2% is a decent rule) and then charge all the way. Do this for 2-3 cycles and you battery will last a lot longer. This is true for any electronics.
Click to expand...
Click to collapse
fachadick said:
not quite - the below is from Battery University in regards to lithium ion batteries (which is what's in the evo);
And
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Click to collapse
If the phone's charge time is roughly 2-4 hours, what will charging it 8-10 accomplish?
The Sprint store opens and activates phones on the spot regardless of charge, which leads me to believe that--while some/most Sprint store Employees aren't very knowledgeable in electronics, I'm sure they would have been told in one of the many meetings they have that you need to not do this and inform the customer of needing to charge their phone for __ amount of time before using it.
At any rate I'm just playing along with the possibility. Of course you don't need to charge your phone any amount of time before using it the first time. Our battery technology has evolved to the point where trying to keep track of charge schedules is irrelevant and not needed. Seriously, if it were, they would have provided a small paper calendar with your phone so that you can mark when the last time you fully discharged it as well as instructions on how to care for your battery.
fachadick said:
not quite - the below is from Battery University in regards to lithium ion batteries (which is what's in the evo);
And
Click to expand...
Click to collapse
While this is accurate, I still always try to full discharge as often as possible. I do this because the phone reads battery information and calibrates the battery percentage based on that.
In my own unscientific research, it seems that frequent charging messes up the battery readings. I know that there was once an article about wiping battery stats being a placebo effect, but it really does seem to help when you wipe, full charge, full discharge. The phone always seems to last longer, but its likely because the phone is properly calibrating the max/min capacity of the battery accurately.
Sent from my PG86100 using Tapatalk 2
The batteries in phones anymore do not use memory in the actual cell. The phone itself does keep record of the battery to help protect it, and clearing that out and re-calibrating the battery by draining it can help, but doing full drains to the battery will just reduce the overall life span of the battery.
Unreasnbl said:
Lithium Polymer batteries are not the same as Lithium Ion batteries.
Avoid draining them to the point the phone shuts off. If they get too low they die.
Never run them down on purpose.
I run RC trucks, I have been using LiPo batteries for several years.
Click to expand...
Click to collapse
The batteries in phones are not lipos.. they are lithium ion... Putting a lipo in a phone is just asking for death or injury lol..
When the first EVO came out this method was dine to train the phone more then the battery and I still use it.. drain till it turns off.. turn back on..keep doing this till it will not turn on..full charge it.. take off charger and put back on till led is green again. I've never burnt out a battery but I can't professional it helped battery life but as I said when EVO first came out battery life was horrid
Sent from my PC36100 using XDA
grrmisfit said:
The batteries in phones are not lipos.. they are lithium ion... Putting a lipo in a phone is just asking for death or injury lol..
When the first EVO came out this method was dine to train the phone more then the battery and I still use it.. drain till it turns off.. turn back on..keep doing this till it will not turn on..full charge it.. take off charger and put back on till led is green again. I've never burnt out a battery but I can't professional it helped battery life but as I said when EVO first came out battery life was horrid
Sent from my PC36100 using XDA
Click to expand...
Click to collapse
The LG Fusic had a LiPo battery.
Yeah i bet some phones will have no charge after customs played with them for a while and did not turn them off and put them back in for us to get screwed. But you may have a update already apply as well to the phone.
fsuwade said:
Yeah i bet some phones will have no charge after customs played with them for a while and did not turn them off and put them back in for us to get screwed. But you may have a update already apply as well to the phone.
Click to expand...
Click to collapse
If I recall correctly, only a sample from each batch was tested and that tested sample was not shipped out to customers.
Yup thats what I heard as well
What I read says this phone has a LiPo battery. They are being used more often in portable electronics than you think.
http://en.wikipedia.org/wiki/Lithium-ion_polymer_battery
grrmisfit said:
The batteries in phones are not lipos.. they are lithium ion... Putting a lipo in a phone is just asking for death or injury lol..
When the first EVO came out this method was dine to train the phone more then the battery and I still use it.. drain till it turns off.. turn back on..keep doing this till it will not turn on..full charge it.. take off charger and put back on till led is green again. I've never burnt out a battery but I can't professional it helped battery life but as I said when EVO first came out battery life was horrid
Sent from my PC36100 using XDA
Click to expand...
Click to collapse
I heard LiPo as well.
Sent from my PC36100 using XDA
simple solution.
keep the phone plugged in while you use it. duh.
charge at the wall and your office computer
Good day people, I have a dumb question and no need to be polite I know its dumb lol I just got an evo lte and I love it so far. But I did some reading up on training batteries and I'm aware that you can't necessarily train a lithium ion battery but I know there things that you can do help the battery last longer etc.
The first day I did my normal routine, drain it all the way charge it all the way. It took a long time for the battery to die which seemed like it was a good thing. I did that twice and I noticed that after a full charge the battery drops to 97% fairly quickly (like withinless than a min or 2) and from the few days I've had it it seems like it may not hold the charge well over time . I wouldn't normally be concerned about this however this is the first phone I've owned without a removable battery, I don't want to regret it 6 months from now because the phone only lasts 5 hours.
So my question is this I am still within the buyers remorse period should I just exchange it for another onevor am I just being too paranoid? Secondly how do you all train your batteries when you first get the phone? What works for you all who own this phone?
Thanks in advance.
tmotechsupport said:
Good day people, I have a dumb question and no need to be polite I know its dumb lol I just got an evo lte and I love it so far. But I did some reading up on training batteries and I'm aware that you can't necessarily train a lithium ion battery but I know there things that you can do help the battery last longer etc.
The first day I did my normal routine, drain it all the way charge it all the way. It took a long time for the battery to die which seemed like it was a good thing. I did that twice and I noticed that after a full charge the battery drops to 97% fairly quickly (like withinless than a min or 2) and from the few days I've had it it seems like it may not hold the charge well over time . I wouldn't normally be concerned about this however this is the first phone I've owned without a removable battery, I don't want to regret it 6 months from now because the phone only lasts 5 hours.
So my question is this I am still within the buyers remorse period should I just exchange it for another onevor am I just being too paranoid? Secondly how do you all train your batteries when you first get the phone? What works for you all who own this phone?
Thanks in advance.
Click to expand...
Click to collapse
First off, congrats on your choice. This phone has a Li-Ion Polymer battery, which is different from the Li-Ion batteries of yore. I am stock rooted and with medium to heavy use I get a day<12+ hours> out of a full charge with no batt training. I have not experienced the rapid discharge you speak of and if you have no apps causing it, you may need to swap it.
I also get a pretty rapid discharge from 100%->98% - takes about 5 minutes to drop that 2 percent. But after that, I am clear sailing for ~15 hours.
Oh so the rapid discharge thing isn't uncommon then? Hmm
tmotechsupport said:
Oh so the rapid discharge thing isn't uncommon then? Hmm
Click to expand...
Click to collapse
I don't know if it's the same as the og evo and the 3d but when it hit 100% try unplugging it then plug it back in for a few. That may give you the true full charge and stop the quick 2% drop
Sent from my EVO using Tapatalk 2
Yea I'm kind of torn on exchanging it. I may just do it. Of course it would be my luck to get a phone with issues if I did.
That's normal. If this is like the OG Evo (and it probably is), the phone will charge to 100%, then let the battery discharge to 95% before charging back to 100% again. This is primarily to protect the battery and prolong its life. So while the phone may claim to be at 100%, it could be as low as 95% when you unplug from the charger. The rapid discharge you're experiencing is really just the phone adjusting to the actual battery level.
Also, there's no need to "train" the battery. I seem to recall that it's generally not healthy to discharge a Li-Po battery to 0%, and can shorten the life of the battery.
The battery percentage drop you guys are seeing is perfectly normal. No need to exchange your phone. As soon as the kernel source is released by HTC, then the great devs here will be able to bless our phones with some SBC goodness and you will not have that problem anymore
You guys don't think I did any noticeable damage by fully discharching it twice do you? I'm going to charge it and see what happens I don't have any immediate thoughts of exchanging it based off of what you guys are saying. I'm going to charge it up and post results. If its not like what you guys are getting life wise I may exchange it as I still have like 5 days left.
Minor update 7 hours 27 minutes 52% left.
tmotechsupport said:
You guys don't think I did any noticeable damage by fully discharching it twice do you? I'm going to charge it and see what happens I don't have any immediate thoughts of exchanging it based off of what you guys are saying. I'm going to charge it up and post results. If its not like what you guys are getting life wise I may exchange it as I still have like 5 days left.
Click to expand...
Click to collapse
No, it's fine.
Fully discharging it just reduces the number of cycles left you have. Most li-ion batteries have 1000 charge cycles. Battery charge is not an exact science. Do not look at it like you are not getting the full charge.
So at the end of the day it looks like roughly 8 to 9 hours of moderate to heavy use on my phone moderate for the first 7 hours heavy for the last 2 and some change. Does that sound about right?
tmotechsupport said:
Minor update 7 hours 27 minutes 52% left.
Click to expand...
Click to collapse
I get around 15 or 20 hrs also cm9 I get 24+
Sent from my EVO using XDA Premium HD app
Battery is good if u see bad battery just get an extended battery
Hit the thanks button
Thanks for everybody's input. I think I've got our down now Lol. But I'd like to keep the discussion open for anyone that would like to be better informed.
New topic: Tips & Tricks for getting the most out of your battery.
Thanks guys!
Don't run it dead regularly (that was for ni batteries), don't charge it all the time (ie topping off everytime you're near a charger). If going to store powered down for long periods do so at like %60 capacity.
Sent from my HTC One_M8 using Tapatalk
twiggums said:
Don't run it dead regularly (that was for ni batteries), don't charge it all the time (ie topping off everytime you're near a charger). If going to store powered down for long periods do so at like %60 capacity.
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
Just to clarify, you saying to not charge when battery it has more than 60% charge remaining? If yes. Then how low do you recommend as to minimum charge left on battery when you plug it in?
Sent from my HTC One_M8 using Tapatalk
Pure+ said:
It's been a while since I have actually cared about a phone enough to really want to take care of every part of it, including the battery, and I was wondering what the best way to keep it fresh is?
Use until it dies and fully charge every time.
Use until low power warning and recharge.
idk what other methods there are....
Anyway, appreciate any and all tips guys:good:
Click to expand...
Click to collapse
Best way is to not worry about it. Only thing you want to avoid is letting it die in standby over and over.
Pure+ said:
Just to clarify, you saying to not charge when battery it has more than 60% charge remaining? If yes. Then how low do you recommend as to minimum charge left on battery when you plug it in?
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
Sorry I was so brief was at work on lunch.
In the ideal world you'd probably charge around %20-%30. Lithium batteries do not like being over drained or overcharged. Overcharging isn't really an issue since our phone handles charging. Over draining repeatedly will drain max capacity, same with overcharging. The %60 i refer to is a rough number if you were going to be storing the phone powered off for weeks or months, lithium batteries should not be stored at max voltage or drained.
You don't want to be constantly "topping" your battery off either. The life of a lithium battery is generally going to be measured in charge cycles. So charging it every time you're sitting at a charger will really just wear it out faster.
I generally just charge my phone every night when i go to bed. With as long as these phones last on a charge; I've yet to burn through my entire battery in less than a day more than a time or two. Don't put too much thought into it or worry too terribly much. Running it down once or twice isn't going to do much that you'd immediately notice, but doing it every time is certainly not a good idea!
twiggums said:
Sorry I was so brief was at work on lunch.
In the ideal world you'd probably charge around %20-%30. Lithium batteries do not like being over drained or overcharged. Overcharging isn't really an issue since our phone handles charging. Over draining repeatedly will drain max capacity, same with overcharging. The %60 i refer to is a rough number if you were going to be storing the phone powered off for weeks or months, lithium batteries should not be stored at max voltage or drained.
You don't want to be constantly "topping" your battery off either. The life of a lithium battery is generally going to be measured in charge cycles. So charging it every time you're sitting at a charger will really just wear it out faster.
I generally just charge my phone every night when i go to bed. With as long as these phones last on a charge; I've yet to burn through my entire battery in less than a day more than a time or two. Don't put too much thought into it or worry too terribly much. Running it down once or twice isn't going to do much that you'd immediately notice, but doing it every time is certainly not a good idea!
Click to expand...
Click to collapse
Okay. Thanks for all the info. It really helps to know that stuff. I'm not to worried about burning through charge cycles. I'm getting 2-3 days of a charge. 4 if I drain it. Battery on this is the best I have even seen. Truly incredible. I don't know how they managed it. But I am absolutely loving it.
Sent from my HTC One_M8 using Tapatalk
The only thing you need to worry about is not letting your battery reach below 14%. Unless your out or not near a charger it's understandable.
Charge your phone once it hits 14%. Let it fully charge don't interrupt it (unless you have too)
Sometimes don't charge your device to 100% I sometimes charge mines to 90%.
Let the battery die once or twice a month.
Just don't worry about the battery. By time you hit anywhere near 500 charge cycles you'll be on the m9 or a new device.
Sent from my SAMSUNG-SM-G900A using Tapatalk
YoungAceAtlanta said:
The only thing you need to worry about is not letting your battery reach below 14%. Unless your out or not near a charger it's understandable.
Charge your phone once it hits 14%. Let it fully charge don't interrupt it (unless you have too)
Sometimes don't charge your device to 100% I sometimes charge mines to 90%.
Let the battery die once or twice a month.
Just don't worry about the battery. By time you hit anywhere near 500 charge cycles you'll be on the m9 or a new device.
Sent from my SAMSUNG-SM-G900A using Tapatalk
Click to expand...
Click to collapse
Why would you only charge to %90? And why would you let it die once a month?
Sent from my HTC One_M8 using Tapatalk
twiggums said:
Why would you only charge to %90? And why would you let it die once a month?
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
Because you wanna train your battery and get the most out of it. A lot of people say those are old rules because these batteries don't have memory cells. But you'll find yourself not needing to replace the battery as fast as you would by just letting it die all the time
I have replaced a cell phone battery yet and I've been using that method since flip phones days
Sent from my SAMSUNG-SM-G900A using Tapatalk
YoungAceAtlanta said:
Because you wanna train your battery and get the most out of it. A lot of people say those are old rules because these batteries don't have memory cells. But you'll find yourself not needing to replace the battery as fast as you would by just letting it die all the time
I have replaced a cell phone battery yet and I've been using that method since flip phones days
Sent from my SAMSUNG-SM-G900A using Tapatalk
Click to expand...
Click to collapse
Hhrrmmm. i think you're thinking of nickel based batteries (nicd, nimh, etc). Generally lithium cells really dont like low voltages or have memory.
twiggums said:
Hhrrmmm. i think you're thinking of nickel based batteries (nicd, nimh, etc). Generally lithium cells really dont like low voltages or have memory.
Click to expand...
Click to collapse
I think he's correct on the letting it die once every month or so. I did a lot of research on this a while back and ideally you don't let your phone drop below 50% regularly and don't let it sit on the charger all night since its going to be at 100% for many hours before you wake up a li ion batteries prefer to not be at 100%. The discharging it fully will calibrate it and make sure all the cells are being used since if certain cells don't get discharged every so often they start to lose ability to hold a charge. Keep in mind I looked all this up 2 years ago and most of the issues only affect people who keep phones for 2+ years unless the do 100%-0% every day then their battery won't last long.
http://batteryuniversity.com/learn/article/do_and_dont_battery_table
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
These phones all have battery protection circuitry built into them.
As the battery approaches 100% charge the charge current reduces to almost nothing to prevent overcharging.
Having said this I would not leave the phone on charge for weeks on end but there is really no reason to worry about taking it off charge the moment it shows 100%.
Likewise for discharge. When the phone indicates that the battery is getting flat it will make sure that even if you run the phone till it dies, the battery will not have been allowed to overdischarge. When your phone switches off software is telling the phone to power down to protect the battery.
Also, to touch upon Lithium battery charge cycles, one charge cycle is the 100% charging of the battery, now keep in mind this can be from 0-100% OR it can also be the sum of multiple chargings up to 100% capacity of the battery
I.e.- charging from 75% to 100% once is not considered a charge cycle to the battery, but do it three more times from 75% (25%x4=100%"rated" capacity) and it considers THAT one charge cycle. So if you charge from 50% regularly, two times charging from 50 to 100% is ONE charging cycle.
Sent from my HTC One_M8
Pure+ said:
Just to clarify, you saying to not charge when battery it has more than 60% charge remaining? If yes. Then how low do you recommend as to minimum charge left on battery when you plug it in?
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
Few months back I was speaking with HTC support, the rep said don't put your phone on charge for more then 1 hour with any lithium batteries.
Sent from my HTC One_M8 using XDA Premium 4 mobile app
Allen` said:
Few months back I was speaking with HTC support, the rep said don't put your phone on charge for more then 1 hour with any lithium batteries.
Sent from my HTC One_M8 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Huh? You saying to only charge it in one hour increments?
Sent from my HTC One_M8 using Tapatalk
i think the battry in the HTC M8 is really good. it will last for a whole day with no issue. I have beeing testing it and actually I am happy with the resulet
Sent from my SM-P900 using Tapatalk
Allen` said:
Few months back I was speaking with HTC support, the rep said don't put your phone on charge for more then 1 hour with any lithium batteries.
Sent from my HTC One_M8 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
As usual, speaking with reps can be cause for alarm. In this case, it's obvious he/she was blowing smoke. Read the links posted in the thread.
Updated OP. This is now more of a help thread for those who need it. Thanks for all the info and tips.
Let's keep it going guys!
Sent from my HTC One_M8 using Tapatalk
I have this doubt since purchasing the Xperia Z!
As soon buy my Xperia Z2 and the store where I will buy it is difficult to leave the charging device 30 minutes before turning it on to test it!
As difficult as it was I let mine charge for an hour or so before I used it. Not sure if I needed to but was in work at the time so had a few things to keep me busy while charging
Sent from my D6503 using Tapatalk
My phone had 62% battery when I recieved it. Probably my contractor that installed some apps and charged it. I didn't charge it untill it was empty.
I wonder what is the need to leave charging for 30 minutes before turning on the device for the first time since the other brands of devices do not need it!
BR4DOKYBrazil said:
I wonder what is the need to leave charging for 30 minutes before turning on the device for the first time since the other brands of devices do not need it!
Click to expand...
Click to collapse
Mine also came with 60% battery when I got it, I think its normal to keep a charge in the battery because it helps battery life.
I let mine drain right down that first day then I charged to 100% overnight.
I currently get to end of day with around 50-60% left
You should always charge them to full before first use. The charge that's in there is only a manufacturing charge, which is enough to keep the cells active.
Also, you shouldn't drain it completely. Lithium works best from around 30%-80% charge.
dilema said:
You should always charge them to full before first use. The charge that's in there is only a manufacturing charge, which is enough to keep the cells active.
Also, you shouldn't drain it completely. Lithium works best from around 30%-80% charge.
Click to expand...
Click to collapse
What I find strange is why other brands of devices do not have this rule??
Li-ion batteries don't need to be fully charged before first use. They don't suffer from "memory" like Ni-Cd. But it is true that for best life you should charge it between 20/30%- 80%. If you plan on storing the phone without use for a long time, best is to charge it to 50-60% (not 100%) and put it away.
Go use and enjoy your phones!
PS: A few laptop manufacturers (like Samsung) have an "extended battery life" mode that you can enable where the battery stops charging at 80%.
BR4DOKYBrazil said:
What I find strange is why other brands of devices do not have this rule??
Click to expand...
Click to collapse
Not all devices may say it, but all should be charged before initial use.
raducanmihai said:
Li-ion batteries don't need to be fully charged before first use. They don't suffer from "memory" like Ni-Cd. But it is true that for best life you should charge it between 20/30%- 80%. If you plan on storing the phone without use for a long time, best is to charge it to 50-60% (not 100%) and put it away.
Go use and enjoy your phones!
PS: A few laptop manufacturers (like Samsung) have an "extended battery life" mode that you can enable where the battery stops charging at 80%.
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You're right, they don't have the memory effect, but they do need charging before use. But yea, storing with at least 2/3rd charge is best.
BTW I sell batteries for a living, have done for 15 years.
Ok so is the correct answer yes, charge for 30mins or not necessary? Seems both sides of argument has support
Sh4dovv said:
Ok so is the correct answer yes, charge for 30mins or not necessary? Seems both sides of argument has support
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As an electrical engineer I have to say: You should charge it before first use. 30 mins charge should be fine.
Well, it might be not so obvious for the battery in Z2, as it was manufactured not a long time ago, but it could end up in battery degradation, if the battery has been stored for a long period of time without usage.
Ok so with the Z2's being manufactured within the last month it probably isn't needed then
Sh4dovv said:
Ok so with the Z2's being manufactured within the last month it probably isn't needed then
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Well, it's hard to say. Precharging the phone won't hurt.
I charged my first z2 for half an hour, and my second one was up and getting flashed within ten mins. I actually found the second one to be better on battery. I do agree that if the phone has been sat dormant for a long while you should charge, but as these things have literally just been made it'll make zero difference.
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